J2ME Loader

J2ME Loader

Developer(s)	Nikita Shakarun (nikita36078)
Latest version	1.7.9
Active	Yes
Platform(s)	Android
Emulates	J2ME ezplusアプリ
Support ($)	PayPal Yandex Money
Programmed in	Java, C
License	Apache 2.0
Source code	GitHub

J2ME Loader is a free and open-source Java 2 Micro Edition and ezplusアプリ emulator for Android It's written in Java and C. This project is a fork of J2meLoader.

Overview

Released in 2017, the emulator is currently capable of playing around lot of games. This is currently the highest compatibility J2ME / ezplusアプリ emulator available. Converts .JAR and .KJX files offline using its own resources. Easily launches both 2D & 3D apps. Samsung & Nokia API implemented. Supports different keyboard layouts and customization. It is highly accurate, with the right frame rate for each game, as well as vibration. Has slightly improved performance through hardware acceleration, but games won't run too fast. Runs almost every Nokia game, even ones that don't work with KEmulator or FreeJ2ME, but fails with Sony Ericsson 3D engine (Mascot Capsule 3D V3), due to the fact that the Mascot Capsule 3D V3 is almost difficult to port. This is partially implemented with JL-Mod emulator.

★ System requirements : Android 4.0 +

Features / Settings

• Fast emulation
• High compatibility
• KDDI ezplusアプリ .kjx games are support. Required 128x160 resulation (ezplus games are small size supported) and font option recommend is (9 - 13 - 15)
• Bluetooth API support
• Touchscreen input support (Play touchscreen games)
• Supports external virtual keyboards and QWERTY input (PC keyboard / GameKeyboard+)
• 3D support
• Supported formats .JAR, .JAD and .KJX
• Menu key remapping support
• Supports different keyboard layouts and customization
• Individual settings for each application.
• Highly accurate, with the right frame rate (FPS support) for each game, as well as vibration.
• Hardware acceleration support (but games won't run too fast)
• Accelerometer support
• Scaling support

→ Add support of external shaders filters

Only shaders for PPSSPP (.vsh format) are supported to use, you need to put them in the J2ME-Loader/shaders folder in the working folder of the emulator, further in the game settings, select the graphics output mode: HW acceleration (OpenGL ES) and select the shader of interest A small collection of compatible shaders can be taken in this repository: shaders

→ Start Menu

→ Font Option (small — midium — large)

Here you can set the sizes of small, medium and large fonts that will be used by the MIDlet. Dimensions are in pixels.

If the Scaled Pixel Sizes check box is selected , the specified dimensions will be adjusted by Android to provide the same visible text size on screens with different resolutions. It is recommended to enable this setting when using virtual screen resolutions of more than 240 x 320 pixels.

The Presets button allows you to quickly set the font sizes that are most suitable for a given virtual screen resolution:

Resulation	Font
240x320	18 — 22 — 26
176x220	15 — 18 — 22
128x160	13 — 15 — 20
128x128	9 — 13 — 15

→ Screen Option

• Width and Height set the size of the virtual screen that will be available to the MIDlet. Many MIDlets are optimized for a specific screen resolution (usually 240 x 320) and may not display correctly at other resolutions.
• Scale if virtual screen resolution does not match smartphone screen resolution:

enabled - the virtual screen is scaled to fit the smartphone screen off - the virtual screen is located in the center of the smartphone screen without resizing

• Maintain aspect ratio when scaling:

— enabled - the virtual screen fits into the smartphone screen while maintaining the aspect ratio, possibly occupying only a part of it

— off - the virtual screen is stretched to fill the entire smartphone screen, possibly with distortion of the displayed graphics

• Screen filtering when scaling improves image quality, but requires more hardware resources

Presets allow you to quickly set the default resolution of the virtual display. The table below shows a list of standard resolutions (for example, HTC Evo 3D, screen resolution 960 x 540)

Resulation	Scale	Aspect ratio and screen orientation
128x128	4.21875: 1	1: 1
128x160	3.375: 1	Portrait 3.2: 4
132x176	3.068: 1	Portrait 3: 4
176x220	2.454: 1	Portrait 3.2: 4
240x320	1.6875: 1	Portrait 3: 4
202x270	2: 1	Portrait 3: 4
360x270	2: 1	Landscape 4: 3
405x540	1: 1	Portrait 3: 4
720x540	1: 1	Landscape 4: 3
960x540	1: 1	Landscape 16: 9

• Options 1 through 5 correspond to standard screen resolutions for mobile phones. They provide the greatest compatibility (most MIDlets are optimized for one of these resolutions), but when scaling to the smartphone screen, the graphics quality may decrease slightly.
• Choices 8, 9, and 10 provide the best graphics quality because they are calculated based on the smartphone screen resolution and do not use scaling. However, if the MIDlet is not optimized for these resolutions, it may not work correctly or not work at all. In this case, it is recommended to select a lower resolution.
• Options 5 and 6 are intermediate in quality and compatibility. They are calculated based on the resolution of the smartphone screen so that there are exactly four physical pixels for each virtual pixel. This removes distortion when scaling. When using these options, it is recommended that you turn off screen filtering to sharpen the picture.

The Background button allows you to select the background color of the screen. This color will fill the stripes at the edges of the screen if it is not completely occupied by the virtual screen.

→ Recommended Devices

Resulation	Devices
480x800	Samsung GT-S8000 Samsung Galaxy S II
480x360	BlackBerry 9360 / 9700 / 9020 / 9780
360x640 / 640x360	Nokia 5800 Xpress Music / 5530 Xpress Music Nokia N8 / C7 Sony Ericsson SATIO / U5i Vivaz
320x480	Samsung GT-S5292 / GT-S5296 / GT-S5380K / S7250 Sony Ericsson Xperia X8
320x240	Nokia E71 / E72 / C3-00 / Asha 201 BlackBerry 8520 / 9220 / 9220 Curve/ 9300 Samsung GT-S3350 / GT-S3353
240x432	Sony Ericsson Aino
240x400	Samsung GT-5230 / GT-S5230 Nokia Asha 305 / 306 / 308 / 311 LG KU990 / GS290 / GS205 / KP500 / GT505 / GT400
240x320	Sony Ericsson K800i / W595a / Z750i / W595 / W910i, Nokia 6280 / 6300 / 5300 / N73 / N95 / N85 / X3-02 / X2-00 / X2-05 / X2-02 / 5000d / C2-03 / 2700 Classic / C2-01 / 220 / 216 / 215 / 222 / 225 / Asha 303 / 503 / 500DS / 202 / 300 Samsung SGH-F480 / GT-S5222 / SGH-D900 / U600 / GT-C3312R / GT-C3310 LG KS360 Motorola RAZR V8 / ROKR Z6 / E2
176x220	LG U8360 / GU230 / GU280 / GB230 / GB280 / A133 / GM205 Motorola RAZR V3 / L7 / KRZR K1 Sony Ericsson W810i Samsung SGH-L700
176x208	Nokia N70 / 7610
128x160	Nokia 5200 / 2300 / 2720 / 3110x / 3110 Classic / 6101 / C1-01 / Asha 110 / 2600 Classic / 2630 Motorola L6 Samsung SGH-E250i / J700 / E215L / E258 / F250L / GT-B2100 / C3050 / E2210 / E2210L / E2510 / M2310 Sony Ericsson W200i
128x128	Nokia 6030 / 3220 Samsung GT-E2121 / E2120

→ Theme / UI

Dark	White

→ FPS

FPS

→ Force full-screen

Normal	Force Fullscreen

→ Button Shape

• Rounded Rectangle

L1	L2	L3	L4

• Oval

L1	L2	L3	L4

• Rectangle

L1	L2	L3	L4

→ Keyboard Type

• Rounded Rectangle

L1	L2

• Oval

L1	L2

• Rectangle

L1	L2

→ Scale Type

As is	Fit to window	Fill window (ignore aspect ratio)

Known issues with workrounds

→ Mascot Capsule 3D V3 games doesn't works.

★ Mascot Capsule 3D V3 is only few way to emulated :

1. Sony Ericsson SDK for Windows, it doesn't work on X64.

2. JL-Mod - Mascot Capsule 3D V3 partially implemented on JL-Mod but you can play almost every game, few games doesn't work properly or slow speed.

3. KEmulator for windows,

→ Tips

• Enabling filtering in some cases can greatly reduce performance. Disable this option if game is too slow.

• Image flickering issues can be fixed by enabling the Immediate processing mode option.

How to use

→ Installation (J2ME / ezplusアプリ)

	Automatic Builds
	GitHubF-Droid
	Play Store

Download a latest version of J2ME Loader on your Android device.

Next, Click (button) at the lower right corner in the main J2ME-Loader Windows and select the .JAR or .KJX program on your file manager, after setup your game configures.

→ BT Installation

• Requirements :

Bluetooth API implemented and use key mapping
- 2 Android Devices
- BT Controller

Download (Apps)

→ Java ME (J2ME)

Sites	Rating
Dedomil.in	★★★★★
Phoneky.com	★★★★★
RuGame Archive	★★★★
Seclub	★★★
Dertz.in	★★★
oldhandhelds.com	★★★
Spaces.im	★★★
Mobile24.co	★★★
Siemensx70.narod.ru (For Siemens only)	★★★

• Also recommend Archive.org full set collections here

→ ezplusアプリ

Japanese carrier KDDI/Au released ezplus as part of their EZweb set of standards for mobile telephony. It is based on Java ME extended with propietary APIs. The first device supporting it was released on 2001 (Hitachi C451H).

Applications were denominated "ezplusアプリ" (during the ezplus name era) and come in the form of .KJX files.

Package
283 .kjx games

* A Collection of Rare / Lost Games

Key binding / mapping

Keys : Default

Key	Action
D-PAD Up	↑
D-PAD Down	↓
D-PAD Left	←
D-PAD Right	→
D-PAD Center	F
D-PAD Left-Up	↖
D-PAD Right-Up	↗
D-PAD Left-Down	↙
D-PAD Right-Down	↘
LEFT-Soft Key	L
RIGHT-Soft Key	R
NUM1	1
NUM2	2
NUM3	3
NUM4	4
NUM5	5
NUM6	6
NUM7	7
NUM8	8
NUM9	9
NUM0	0
*	*
#	#

Screenshots

Compatibility

J2ME Loader is currently high compatible and capable of playing thousands of J2ME games (Runs almost every Nokia games, especially GameLoft games) with ezplusアプリ games are support, more than 96.8% of the J2ME library with supports most 2D games and also 3D with some limitations (Mascot Capsule 3D V3 games don't work).

List of The Tested Java Games (Touchscreen)

List of The Tested Java Games (Non Touchscreen)

List of The Java Games with Bugs

See also

• JL-Mod
• EKA2L1

External links

• Official Discord server - If you have any questions about future request or J2ME games related then ask on discord server. It a great place to discuss for J2ME stuffs.
• 4pda.ru Discussion
• Xda-dev Discussion
• Crowdin - You can help Translation J2ME-Loader .xml file in your native language by using crowdin.